20993025

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6827}}^1$

素因数の和:6881

約数の個数: 24

約数和(自身を含む): 35560224

約数和(自身を除く): 14567199

約数列:

[1, 3, 5, 15, 25, 41, 75, 123, 205, 615, 1025, 3075, 6827, 20481, 34135, 102405, 170675, 279907, 512025, 839721, 1399535, 4198605, 6997675, 20993025]

約数ペア:

[(1, 20993025), (3, 6997675), (5, 4198605), (15, 1399535), (25, 839721), (41, 512025), (75, 279907), (123, 170675), (205, 102405), (615, 34135), (1025, 20481), (3075, 6827)]